S-96146A117 4-40 x 3/8" Nickel Alloy Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel material, offering enhanced durability in harsh environments compared to Monel alloys
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration in industrial applications
• Precision Class 3A thread fit provides secure, tight fastening with minimal backlash for critical assembly requirements
• Rockwell B60 hardness delivers excellent wear resistance and maintains thread integrity through repeated installations
• Standard hex socket drive allows for easy installation with common tools while preventing cam-out in confined spaces
• Full threading along 3/8" length enables flexible positioning and consistent clamping force across the entire fastener
• Environmental compliance meets RoHS 3 and REACH regulations for safe use in regulated industries worldwide

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 400 Nickel socket head cap screws solve critical corrosion and strength challenges where standard fasteners fail. The 4-40 UNC coarse thread configuration with Class 3A precision fit ensures vibration-resistant connections in machinery, electrical enclosures, and marine equipment. Unlike inferior alternatives, the combination of 70,000 psi tensile strength and Rockwell B60 hardness maintains clamping force under thermal cycling and dynamic loads. The fully threaded design accommodates varying material thicknesses while the hex socket drive provides reliable torque transmission in space-constrained assemblies. These fasteners deliver Monel-comparable performance at optimized cost for OEM and MRO applications requiring long-term reliability.

Specification Summary & Compliance

This socket head cap screw features precise 4-40 UNC coarse threads with Class 3A fit per ASME B18.3 standards, ensuring consistent dimensional accuracy. The 3/8" length and fully threaded rod type maintain uniform engagement across applications. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) regulations, confirming environmental safety for global industrial use while meeting mechanical property specifications for high-performance fastening solutions.